Answers

2015-12-18T00:47:49+05:30
Let cost price of 1 article is a that of 23 Will be 23a and selling price of 20 article is 23a that is selling price of 1 article will be 23a/20 total gain on 1 Article will be 23a/20 - a =3a/20 percentage gain =( 3a/20 ÷a ) ×100 = 15%
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